Automatic spending cuts began hitting the Federal Aviation Administration on Sunday, meaning travelers should be prepared for longer security lines and lengthier waits at airports as things get sorted out.

According to NYC Aviation, delays of up to an hour were cited in and around New York on Sunday night, with both John F. Kennedy International Airport and LaGuardia Airport reporting delays due to “staffing.” Already this morning, several flights are seeing lengthy delays, including the shuttle services up and down the East Coast.

The Chicago Tribune is reporting the FAA has warned, “travelers should expect delays averaging as much as 50 minutes per flight this week because of fewer air traffic controllers in towers.” But don’t worry too much: no sector of air space will go without controller guidance. Just be sure to check flight statuses before you set off to the airport, and allow plenty of time to get through security – lines are expected to be slow-moving as Transportation Security Administration personnel have been furloughed, too.